Survivorship characteristics and adaptive mechanisms of phytoplankton assemblages in ballast water

摘要: Phytoplankton diversity and abundance were determined in ballast water from 26 vessels the Shanghai Yangshan Deep-Water Port April 2015 to January 2016. In total, 84 species of phytoplankton identified, belonging 43 genera 5 phyla. Bacillariophyta (75.0%, including 30 63 species) dominant algae water. Their density ranged (5.55±9.62) SD (1.878±0.872)×10 3 cells/L, with a mean 410.1 cells/L. Nine potentially harmful taxa detected: Ceratium furca, Ce. marcroceros, Leptocylindrus danicus, Coscinodiscus radiatus, Co. granii, Prorocentrum micans, Melosira sulcata, Meuniera membranacea Skeletonema costatum. Our survey identification results showed that Microcystis aeruginosa, Ankistrodesmus falcatus Scenedesmus survived high-salinity water, even though they are freshwater species. We identified common features surviving impacts on assemblage age source. goal was understand adaptative mechanisms providing statistical theoretical support for future research suggesting scientific basis management inspection entering port.